| Name | Description | Type | Additional information |
|---|---|---|---|
| DueDate | Optional. Due date for the Purchase Order. If blank the date will not be updated. | date | None. |
| DeliveryCost | Optional. Delivery price for the Purchase Order. If blank the price will not be updated. | decimal number | None. |
| PurchaseOrderReference | Optional. Reference for the PO. This must be unique. If blank a reference will not be updated. | string | Max length: 50 |
| PaidOn | Optional. The date the Purchase Order was paid. If blank the paid on date will not be updated. | date | None. |
